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| 1st(1st leg) | Borussia Dortmund | - | Spora Luxemburg | 4:3 (1:2) | ||
| 2nd (2nd leg) | Spora Luxemburg | - | Borussia Dortmund | 2:1 (2:1) | ||
| 1st(1st leg): 01/08/1956 | 2nd (2nd leg): 06/09/1956 | Winner: Spora Luxemburg | ||||
| 1st(1st leg) | Dinamo Bucureşti | - | Galatasaray | 3:1 (1:0) | ||
| 2nd (2nd leg) | Galatasaray | - | Dinamo Bucureşti | 2:1 (1:1) | ||
| 1st(1st leg): 26/08/1956 | 2nd (2nd leg): 30/09/1956 | Winner: Dinamo Bucureşti | ||||
| 1st(1st leg) | TJ ÚNV Slovan Bratislava | - | Legia Warszawa | 4:0 (3:0) | ||
| 2nd (2nd leg) | Legia Warszawa | - | TJ ÚNV Slovan Bratislava | 2:0 (0:0) | ||
| 1st(1st leg): 12/09/1956 | 2nd (2nd leg): 19/09/1956 | Winner: TJ ÚNV Slovan Bratislava | ||||
| 1st(1st leg) | RSC Anderlecht | - | Manchester United | 0:2 (0:1) | ||
| 2nd (2nd leg) | Manchester United | - | RSC Anderlecht | 10:0 (5:0) | ||
| 1st(1st leg): 12/09/1956 | 2nd (2nd leg): 26/09/1956 | Winner: Manchester United | ||||
| 1st(1st leg) | Aarhus GF | - | OGC Nice | 1:1 (1:0) | ||
| 2nd (2nd leg) | OGC Nice | - | Aarhus GF | 5:1 (3:0) | ||
| 1st(1st leg): 19/09/1956 | 2nd (2nd leg): 27/09/1956 | Winner: OGC Nice | ||||
| 1st(1st leg) | FC Porto | - | Athletic Club | 1:2 (0:1) | ||
| 2nd (2nd leg) | Athletic Club | - | FC Porto | 3:2 (1:2) | ||
| 1st(1st leg): 20/09/1956 | 2nd (2nd leg): 26/09/1956 | Winner: Athletic Club | ||||
| decisive matches | ||||||
|---|---|---|---|---|---|---|
| Borussia Dortmund | - | Spora Luxemburg | 7:0 (4:0) | |||
